If someone could help me I would greatly appreciate it. I have a Toshiba Tecra 9100 that won't operate from the battery. The system operates fine when connected to the AC Adapter. When I unplug the adaptor with the system still on, I recieve a NMI: channel / IOCHK error. After unplugging the AC Adaptor, the operating system stays up until i move the pointer and open a program, then I get the error mesage. I don't think the battery is bad because the system stays on after unplugging the cord, but I cannot get back into the operating system without rebooting first. Does anyone know what is going on? Is the Battery shot? Is the Power Supply bad? PLEEEEEEEASE HELP.